Ergonomically designed to help keep spine in proper alignment while providing added support and comfort. Promotes improved posture for the head, neck and lower back – lessening risks of discomfort, pain and injury common when sitting for extended periods of time. High-density polyurethane foam conforms to provide support to lumbar region. Stabilizing board insert prevents hammocking in sling-back wheelchair. Stretch, nylon cover is low-shear, breathable and removable for convenient machine-washing. Exceptional, 22-inch width to accommodate larger users. Adjustable safety straps to maintain appropriate position and add security. Ideal for use in situations requiring a seated position for extended periods of time, such as with wheelchairs, office chairs and more.